The high molybdenum, chromium, and nickel content make 317L seamless pipe corrosion-resistant. It excels against pitting, crevice corrosion, and acids like sulfuric and phosphoric.
ASTM A312 Stainless Steel 317L Seamless Pipe Manufacturer
Zhejiang Xintongda Special Steel (XTD) is a leading Chinese manufacturer of high-quality 317L stainless steel seamless pipe. This pipe is made of austenitic stainless steel with low carbon and high molybdenum content. This makes it a preferred choice over regular 316L for applications that need better protection against pitting and general corrosion. We manufacture this SMLS Pipe in complete compliance with the ASTM A312, EN, JIS, GOST, and GB standards. At elevated-temperatures up to 454°C (850°F), 317L stainless steel offers improved creep resistance and stress-rupture performance compared to 316L. These qualities make it ideal for important uses in chemical processing, petrochemical equipment and power generation. We maintain a large stock availability and provide custom pipes to meet customer needs. We also hold multiple international certifications.
Our ASTM A312 TP317L pipe meets the following specifications:
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Standard
ASTM A312
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OD Range
6-1016 mm
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Thickness
1-65 mm
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Length
≤ 18 m
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Technical Data
Technical Data
SS 317L Seamless Pipe Manufacturing Process
The manufacturing process for SMLS Pipe begins with solid steel billets. These billets are heated to forging temperature in a rotary hearth furnace. A piercing mill then punches a hole through the center of the heated billet, creating a hollow shell. This shell is then rolled and drawn to its final desired dimensions, creating a smooth, seamless pipe.
What are the Key Features of 317L Stainless Steel Pipe?
SS 317L pipes have 5 main characteristics. These include superior corrosion resistance, low carbon content, high temperature strength, formability and weldability and non-magnetic in the annealed condition.
- Superior Corrosion Resistance: This pipe offers excellent resistance against different corrosive media. The higher molybdenum content in its composition is responsible for this enhanced durability.
- Low Carbon Content: The pipe has a reduced carbon level. This decreases carbide precipitation. This feature prevents sensitisation and intergranular corrosion especially after welding.
- High Temperature Strength: SS 317L pipe retains its structural integrity exceptionally well in high-heat environments. It has higher creep strength and greater stress to rupture than 316/316L grades at elevated temperatures.
- Formability and Weldability: The pipe is very ductile and can be easily formed into different shapes. Its austenitic crystalline structure gives it high ductility. Standard fusion welding methods can also easily weld it.
- Non-Magnetic in Annealed Condition: When it is in its heat-treated (annealed) state, it does not have any significant magnetic properties. This non-magnetic behavior is due to its face-centered cubic (FCC) austenitic microstructure. This property makes it useful in situations where magnetic interference needs to be avoided.
ASTM A312 TP317L Stainless Steel Seamless Pipe Equivalent Material
Stainless steel 317L seamless pipe is commonly known as UNS S31703. Other global equivalents include Werkstoff Nr. 1.4438, AISI 317L, JIS SUS 317L, EN X2CrNiMo18-15-4
| GRADE | UNS | GB | JIS | ISO | DIN/EN | GOST | |
| ISC | NEW | ||||||
| 317L | S31703 | 00Cr19Ni13Mo3 | 022Cr19Ni13Mo3 | SUS317L | X2CrNiMo18-15-4 | 1.4438 | 03Х17Н14М3 |
100% Certified Testing & Documentation
- EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- Raw Materials Certificate
- 100% PMI
- Heat Treatment Charts
- Third-Party Inspection Report
- Surface roughness and size measurement
- Manufacturer Test Certificate (Impact Testing, Flattening, Flare, Bend, Hardness, Intergranular, Pitting Corrosion, Grain size, ET, UT, HT)
- Laboratory Test Certificate from the Government-Approved Lab
Industries Using 317L Seamless Stainless Steel Pipes
317L seamless SS pipe finds applications in 6 industries. These include:
Chemical and Petrochemical Industry
The pipe is used to transport aggressive chemicals and corrosive fluids. Its strong corrosion resistance provides long-term reliability in harsh processing environments.
Oil and Gas Industry
SS 317L pipe is used in both onshore and offshore equipment, especially for conveying brine and sour gas. The improved resistance prevents expensive failures caused by chloride corrosion.
Power Generation
SS 317L pipe is used in condensers and heat exchangers especially in fossil fuel and nuclear power plants. It maintains strength and resistance in high-temperature, high-pressure steam systems.
Desalination Plants
The pipe can handle concentrated brines and highly corrosive seawater. It is necessary for piping systems and heat transfer in reverse osmosis (RO) and multi-stage flash (MSF) units.
Food and Beverage Industry
SS 317L seamless pipe is used in processing equipment, storage tanks, and piping for handling foods, beverages, and organic acids. Its smooth surface and corrosion resistance help maintain product purity.
Pharmaceutical and Biotechnology Industry
The pipe is well-suited for vessels and piping where sterility and resistance to clean-in-place (CIP) chemicals are crucial. Its cleanability is vital for avoiding contamination in sensitive production processes.
Frequently Asked Questions
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What makes 317L seamless pipe corrosion-resistant?
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Is 317L seamless pipe suitable for high-temperature applications?Yes. 317L can be used in high-temperature applications up to approximately 925°C (1697°F) in continuous service and about 870°C (1600°F) for intermittent use.
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Are custom sizes of 317L seamless pipes available?Yes, custom sizes of 317L seamless pipes are available in OD range 6-1016 mm, thickness 1-65 mm and lengths up to 18m.